“the increase in water quality from level 1a to surface level iv standards following the lifting of the markers has resulted in a significant increase in the quality of water produced, with tailings being used as a renewable source of water, exclusively for the ecological recharge of rivers.” in recent days, with the completion of the work to upgrade the sewage treatment plant in the south-east of the city, our city's drainage “two clean and one tender” was successfully completed。
“two clean and one lifting”, namely, “the clean-up of rain-contaminated piping networks in urban built-up areas, the clean-up of black-stealing water in urban built-up areas, and water quality markers in municipal sewage treatment plants”. After nearly two years of implementation, our city completed its provincial target two years ahead of schedule, making it the first and only city in the province to have fully completed the “two clean and one billboard” of municipal drainage. The department of housing and urban and rural construction has published the province-wide model water work experience, which in its first edition has promoted the “two zeros and one declares” approach in the east camp municipality and has been replicated throughout the province。
Systemic planning to create synergy working mechanisms
Since the provincial council and the provincial government deployed the city's water drainage “two clean and one billboarding”, our city has continued to move forward at the top and has applied it with precision, focusing on the promotion of the implementation of the major national strategy of the yellow river. The city council and municipal government have been responsible for conducting numerous thematic studies by holding meetings with comrades, creating a task force and technical steering group headed by the deputy mayor and composed of members of the city's direct authorities, and forming a pair of “one-on-one” pairs with each county (district). A province-wide initiative has been spearheaded to develop a programme for the implementation of urban drainage “two clean, one decorated” and a technical guide for urban rain-contamination rehabilitation. The establishment of a system of joint oil field meetings and thematic consultations explored the “east camp model”, which is highly synergistic and intelligently linked. The lessons learned approach was replicated in the case of the department-wide roll-out of major strategic deployment strategies for the implementation of the ten large needs。
A cumulative investment of $2. 13 billion was made in the construction of more than 180 kilometres of new rain-contaminated pipes, the completion of the rehabilitation of 1302 sub-structures of rain-contaminated fluid networks, the completion of the upgrading of all 10 urban domestic sewage treatment plants, the increase in sewage treatment capacity of 115,000 tons per day, and the implementation of a dynamic clean-up of 6 urban black-smelling water bodies。
Integrated approach to building high-level efficient propulsion models
“although this is underground work, it has brought us tangible and tangible benefits. In the past, water had been sown on the roads in the sub-districts, and the water was so drowsy that it was not accessible. When the project was completed, not only the roads were flat, but the rain was not flooded, but, more importantly, the sewer smell was gone and the living environment was significantly elevated.” in the eastern camp, the residents of the armed section of the mandarin neighbourhood were satisfied。
As part of the “two clean and one-poster” exercise, a three-tiered tectonic grid was set up for “pump station collection areas — municipal roads — sub-districts, units”, stretching to 658 mixed points for the municipal network and 8550 mixed points for the construction network. Systematically streamline work assignments, develop annual plans, clarify the list of tasks, and achieve projectization, project listing and accountability. Insisting on the popularization of participation, wide-ranging information campaigns, the distribution of “dissemination papers”, the posting of “communication letters”, the participation of representatives of the community, the property industry and the population throughout the process, and the full solicitation of the popular “good idea” of the “gold idea”. The construction works are carried out in phases, first underground and then underground, with reasonable construction barriers and warning signs to minimize the impact on the population, and with strict controls on entry materials, construction quality and inspection, as well as enhanced security construction and pipe protection to minimize secondary hazards. The science accelerated the construction, and the implementation of the wrong, wrong peaks, cross-construction and restoration of the construction side achieved the zero goal。
Innovative breakthroughs, exploring reliable long-acting paths
As an important component of the retrofitting of the sewage treatment plant in the “two zeros, one billboards” project, the south east city sewage treatment plant invested $167 million in the construction of the project, mainly through the adaptation of the status tanks and the aao bioreaction pool by increasing suspended fillings to increase the efficiency of codcr and the removal of nitrogen; the construction of new anti-nitrobilization biofiltration tanks to enhance the denitrogentation process; the construction of new impregnated ultrafilm workshops and associated reservoirs to reduce the levels of suspended water and total phosphorus; the construction of 120 hectares of artificial wetlands to improve the surrounding landscape and the environment of natural water bodies; and the retrofitting of the master chart line and electrical appliances, as well as the construction of new pump lift houses and pyrometrics. The project has now been fully completed and the quality of water produced has increased significantly。
With a view to facilitating the smooth implementation of the “two clean-up and one billboarding” exercise, our city has made a breakthrough in innovation, using the “epc+o” model, to integrate project construction and operation, and to introduce techniques such as the rehabilitation of sewage pipes for unearthed construction, ultra-magnetic separation of water, etc., to reduce the full life-cycle costs. Integrated implementation of the project “integrated management of five-six-drive drainage” “improved water quality of the guangli river”, “land connectivity of central cities and lakes and improvement of water quality of sea-bound rivers”, to achieve an effective interface with the management of intra-urban flooding, the upgrading of aquatic ecosystems and the sustainable use of water resources. (c) simultaneously advance intellectual regulation and promote the application of digital twinning, bim technology to achieve real-time awareness of urban sewage collection and treatment risks, timely early warning of problems and emergency intelligence disposal。
In the next step, our city will continue to build and strengthen its management, continuously strengthen its screening, maintain the operation and maintenance of the municipal sewerage network, further upgrade the precision management of municipal sewage treatment facilities and devote itself to the “two clean, one billboard” post of municipal drainage. (reporter wang moi-mei, correspondent sun gwang-hui)
